Merge pull request #886 from mwcraig/use-astropy-bitfield

Use astropy's bitmask instead of bundling a copy

Author: mwcraig

CHANGES.rst

@@ -11,6 +11,7 @@ Other Changes and Additions
 - Elements of the data array in a flat image that are masked are set to 1
   instead of 0.
 - Removed unused ``ccdproc.test()``. Use ``pytest --pyargs ccdproc`` instead. [#880]
+- Removed bundled copy of bitfield handling and use the one from astropy. [#886]
 
 Bug Fixes
 ^^^^^^^^^

ccdproc/core.py

@@ -12,13 +12,15 @@
 from astropy import units as u
 from astropy.modeling import fitting
 from astropy.nddata import CCDData, StdDevUncertainty
+from astropy.nddata.bitmask import (
+    bitfield_to_boolean_mask as _bitfield_to_boolean_mask,
+)
 from astropy.units.quantity import Quantity
 from astropy.utils import deprecated, deprecated_renamed_argument
 from astropy.wcs.utils import proj_plane_pixel_area
 from packaging import version as pkgversion
 from scipy import ndimage
 
-from .extern.bitfield import bitfield_to_boolean_mask as _bitfield_to_boolean_mask
 from .log_meta import log_to_metadata
 from .utils.slices import slice_from_string